Evidence row 3396413

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://updown-io.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/updown-io/"
    ]
  ],
  "name": "updown.io MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-11-05T11:41:13.877825Z",
        "status": "active",
        "statusChangedAt": "2026-11-05T11:41:13.877825Z",
        "updatedAt": "2026-11-05T11:41:13.877825Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Check updown.io uptime checks, downtimes, response metrics and status pages, and create checks.",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/updown-io",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://updown-io.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/updown-io",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "updown.io MCP by usefulapi",
      "version": "1.35.2",
      "websiteUrl": "https://usefulapi.io/updown-io/"
    }
  },
  "source": "mcp_registry",
  "summary": "Check updown.io uptime checks, downtimes, response metrics and status pages, and create checks."
}

What the leaf hashes

{"body":"0f7b3880774546d155d1179c1019217a4f504586fb1c835323ddb1cd9f49708e","id":3396413,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793881291336112,"prev":2726846,"subject":"mcp_registry:io.usefulapi/updown-io","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-05 (322504 rows).

1. 0x639d1e0d45869833cc86ded038f862f81dd14e21e51d0136f50d86445c213256
2. 0x8c56fd2676d14b81ed08f0d1267d25c07e94376e5e5632a0e79fe4ad0d020064
3. 0x5b2b3c65a84c91c665edb25a078c36368176ea70fed4de93fc0c92dbcaeddaff
4. 0x598482b14b68a175af58467ea65655ece1d9bc4e3f9c7de67a49cce048c1f95a
5. 0xc5823ae1fc9114b3ef29af18c78ebeeff564b528afa9dce9bbc749c25d603040
6. 0x20235bbe71e8cd2a7fe98cb78aa0d8715a398608a61f8a825e196948e6be880c
7. 0x8f5a2ba705eb50c1ac2e113a2fab72554c338d411e5c93629ba3862ecf78c2a5
8. 0xaf6a91a85d9a68c788ba45f68664d78bef7b4f58ac2e17192ae4361327c10ec9
9. 0x136bba3623254440f40d64e5bceaa7ef225a4ce8b07d58e1efffe7a7c885b18c
10. 0x4f0859485dfb45cd69f73cbf9d945b2984a07f199a272880ef53019efbf3b46c
11. 0x9676ca210cd944c63247613ccee581b26abda4b64ebf3c3f82fabb684459ef7c
12. 0xfced449b3e7e4909cd5bb3dc13f55042b00e829e8054b4422cb23d57a838eac1
13. 0xd034548722c9504904677c9c78a99cfd999046f6ba62128a4b775870b4cf2403
14. 0x46ef5af0b7f0274dcbd6f51f6acdc148191a732eb4945d58cf9ab96f1f37d590
15. 0xd1b826c1036e86032791eb321451282a424bfed64c08ff605cb756a1f89d4ee1
16. 0x01716548fb56e8e74ac29a1a638626afc662ed7e187bafcf089344de82365b83
17. 0xddde0b0de5219c91c717b03cab5216193dc0f26fb006aa8ba17020a71dbd997a
18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94